Finding the Third Proportional to 10,364,780 and 21,393,435

Step by Step Solution

1. Step 1: Write the proportion equation
   10,364,780 : 21,393,435 = 21,393,435 : x
2. Step 2: Convert to fraction form
   10,364,780/21,393,435 = 21,393,435/x
3. Step 3: Cross multiply
   10,364,780x = 21,393,435 × 21,393,435
4. Step 4: Simplify right side
   10,364,780x = 457,679,061,099,225
5. Step 5: Solve for x
   x = 457,679,061,099,225/10,364,780
6. Step 6: Final answer
   x = 44,157,141.89